Computer Configuration > Administrative Templates > Microsoft Edge
Both
HKLM\Software\Policies\Microsoft\Edge
OBSOLETE: This policy is obsolete and doesn't work after Microsoft Edge 112. This policy doesn't work because WebSQL in non-secure contexts is on by default as of Microsoft Edge 105. If you enable this policy, WebSQL in non-secure contexts will be enabled. If you disable or don't configure this policy, WebSQL in non-secure contexts will follow the default settings of the browser. This policy was removed in Microsoft Edge 113 and is ignored if configured.